Machine for paring and polishing phonograph-cylinders



3 Sheets-Sheet 1,

(No Model.)

G. A. BEACH.

MACHINE PoR PARING AND POLISHING PHONOGRAPH GYLINDERS.

Patented Nov.'25, 1890.

www@

(No Model.)

3 Sheets-Sheet 2.

. BEACH.

Patented Nov. 25, 1890.

(No Model.) 3 sheets-sheet a.

G. A. BEACH. MACHINE POR PARING AND POLISHING PHONOGRAPH GYLINDBRS. No. 441,609. Patented Nov. 25, 1890.

Zar/'19,2

UNITED STATES PATENT Orman.

GEORGE A. BEACH, OF SIOUX CITY, IOl/VA, ASSIGNOR OF ONE-FOURTH TO CHARLES DICKINSON, OF CHICAGO, ILLINOIS.

MACHINE FOR PARING AND POLISHING PHONOGRAPH-CYLINDERS.

SPECIFICATION forming part of Letters Patent No. 441,609, dated November 25, 1890.

Application filed J une I6, 1890. Serial No. 355,524. (No model.)

T all whom if may concern:

Be it known that I, GEORGE A. BEACH, a citizen of the United States, residing in Sioux City, in the county of Woodbury and State of Iowa, have invented a new and useful Improvement in Machines for Paring and Polishing Phonograph-Cylinders, of which the following is a specification.

My invention relates to machines or de- [o vices for paring or polishing phonograph or graphophone cylinders.

Heretofore phonograph-cylinders have usually been pared and polished by an attachment to the phonograph-machine itself; but

I 5 this method is objectionable on account of the dust or parings getting into or upon the phonograph mechanism and interfering with its operation, and also because of the delay and time required where the paring is done zo bjfthe feed mechanism of the phonograph it- The object of my invention is to provide a mechanism of a simple, efficient, and durable character by which the phonograph or graphophone cylinders may be rapidly and cheaply pared and polished.

My invention consists in a revolving holder for receiving and holding the phonographcylinder, furnished with a feed-screw and nut for giving the requisite feed or longitudinal movement to the wax cylinder as it revolves in combination with a paring or polishing tool. To prevent the corner or edge of the paring knife or tool from tearing, breaking,

or gouging the surface of the cylinder, I so combine the knife with the axis of the cylinder or its holder that its edge makes a slight inclination therewith, so that the extreme ends of the knife will not touch the cylinder at all, or if at all cut very slightly. By this means I prevent scratching or marring the cylinder by the corners or end of the knifeblade, and though the shaving cut bythe iniddle portion of the knife be slightly deeper than that out by the end portions of the knife this slight swell or curve given to the surface of the wax cylinder will not in any way, I find, interfere with the proper operation of the phonograph or graphophone, as the needle or 5o engraving-point of the phonograph can by its spring or yielding movement compensate for any such swell or curvature in the surface of the cylinder. To further prevent chipping of the wax cylinder, I combine the knife with the cylinderor its holder, so that the knife strikes the cylinder at an inclination to its surface, the arrangement of the knife being, preferably, nearly tangential to the surface 0f the cylinder to be pared.

The invention further consists in the par- 6o ticular means of combining"`the revolving holder and its shaft with the support or frame in which it is mounted, so that thegravity of the cylinder, supplemented by a weight when desired,1nay be utilized as the force or power for doing the work.

It further consists, in connection with the revolving holder, feed-screw, and knife, of automatic mechanism for adjusting or feeding the knife after each shaving is cut from the 7o cylinder preparatory to the succeeding operation.

It further consists in the novel devices and novel combinations of parts and devices herein shown and described, and more particularly pointed out in the claims.

In the accompanying drawings, which form a part of this specification, and in which similar letters of reference indicate like parts, Figure l is a vertical sectional view of a de-` 8o vice embodying my invention. Fig. 2 is a section taken on line 2 2 of Fig. l. Fig. 3 is a detail elevation of the mechanism for feeding or adjusting the knife. Fig. 4 is a detail View of the cylinder and knife, showing the inclination of the latter to the former. Fig.

5 is a detail view of the knife. Fig. 6 is a detail View of one of the knife-holder plates. Fig. 7 is a detail view of the polishing-tool which is substituted for the knife during .the 9o polishing operation. Fig. S is a detail View of the cap or plate for holding the knife feed-- gear in place. Fig. 9 represents a modification in which the screw is fixed rigidly to the t frame and in which the threaded nut is made integral with the reciprocating holder upon which the wax cylinder is secured.

In the drawings, A represents the frame of the machine, which may preferably consist of two upright supports A. A', secured by screws roo a to base-plate A2. 'l'he base-plate is or should be furnished with a rubber or other yielding pad A3 to prevent jars or injury to the phonograph-cylinder as its holder de- 5 scends.

B represents the revolving and reciprocating holder upon which the wax phonographcylinder C is secured. The holderB may be of any suitable form or construction adapted to receive and hold the phonograph-cylinder. there the phonograph-cylinder is made of wax and adapted for frequent parings, the holder B should be a counterpart of the waxcylinder holder upon the phonographmachine.

D represents the feed-screw and D its threaded nut. Preferably the nut is fixed in or to or made integral with the frame A, and the screw is secured to the revolving holder B. The screw, however, may be, as shown in Fig. 8, ixed rigidly to the frame, and the threaded nut be secured to or made integral with the holder B. The threads constituting the nut D may preferably be cut in the frame A itself or in the holder B, as shown in Fig. 8. The screw D may be secured to the holder B by a threaded nut d. To diminish the friction between the screw D and its nut a portion of the frame B may be cut out, as shown at d. The pitch of the threads of the screw and nut may preferably be such that the weight of the holder and screw, supplemented, if necessary, by a weightE, will sufce to cause the holder to revolve as it descends by its own gravity. The weight D2 may preferably ,be made in the form of a hand-wheel, like that, for example, of an ordinary letter-press. By giving this wheel a quick revolving impulse also, its momentum will serve to cause the wax-cylinder holder to descend and revolve to the extent necessary for 011e complete paring or polishing operalon.

F represents the dressing-tool. This tool may be either a knife or paring-tool, as shown in Fig. l, or a polishing-tool, as shown inFig. 6. The knife or paring-tool F is furnished with a chisel-shaped straight edge f and with a slot or notch f', through which thescrews 5o or bolts f2 pass, by which it is adj ustably secured in its holder F. The holder F consists, preferably, of two iiat plates secured to a screw-bar` G by the bolts f2, the plates F having a slot f3 for one of the bolts f2 to pass through to permit the adjustment of the plates. The bar G is preferably square and iits in a square socket or guide g in the frame ofthe machine. The corners of this square bar are furnished with screw-threads g to re- 6o ceive the gear-nutJ. The corners g2 of the knife-holder bar G are v removed to permit them to passfreely through the screw-threaded gear J. A portion of `the bar G is thus left smooth, so as to fit snugly in its guideway or socket, while a portion of it is threaded to recci-ve thegear-nut. The gear-nutJ fits in a pocket or recess J in the frame and is held in place by a cap or plate L, having a notch L to receive the bar G and ascrew or bolt L2 to hold it in place. By simply loosening the screw L2 the plate L may be swung on the screw as a pivot and the knife F, its holder-bar G, and nut J may be all thus removed bodily. This is a matter of convenience when the knife requires sharpening or dressing.

The screw-threaded knife-holder bar G is automatically operated by a rack-bar M, having an arm or projection m, against which the holder B or some part attached thereto or moving therewith impin ges. The rack-bar M slides up and down in suitable guides N N on the frame of the machine. After each impulse it is returned to place by a spring I), secured by screws p to the frame of the machine. A pin or projection m on the bar M, striking against the guide N limits the movements of the rack-bar. To permit the rackbar to be bent or pulled out of engagement with the gear J when it is desired to turn the gear by hand for the purpose of adjusting the `position of the knife to or from the Wax cyl- `inder, the lower guide N is made to fit loosely and the bar M is provided with a flat spring.

m2, which serves to press the rack-bar against the gear, and a spring P is also furnished at `the lower end of the rack-bar. The teeth on the gear J and on the rack-bar M are made `of a ratchet form, so that the rack-bar will only operate to turn the gear in one direction. The movement of the rack-bar Mis` so ad- .j usted or proportioned in relation to the gear J and screw-threads on the knife-holder bar th at after each successive paring or polishing operation the knifel will be automatically moved in toward the cylinder just the amount 4necessary for the next shaving.

The operation of the device is as follows:

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The cylinder to be pared or polished being `placed in or upon the holder B, the holder is raised to its uppermost position, when the rack-barNWill be reciprocated, thus causing the knife-holder bar G to be fed inward toward the wax cylinder. The holder B is then caused to descend and revolve, either by gravity or otherwise, and as it descends and revolves the knife F will pare the cylinder to the required depth. It will be observed that `the length of the knife or polishing-tool is somewhat greater than the 'distance between the threads of the screw, so that thewhole length of the knife will not be `requiredto touch or cut the cylinder in order to pare its whole surface. yI am thus enabled to incline the edge of the knife slightly to the axis of the cylinder and prevent any tendency tobreak or tear the wax by the corners of the knife, as the exterior corners of the knife `will not touch or cut the cylinder at all.

l. In a phonograph or graphophone cylinder paring machine, the combination, with a revolving and reciprocating holder for the IIO Il I

phonograph-cylinder, of a paring-knife having its edge set at a slight angle to the axis of the cylinder, substantially as specified.

2. The combination, with the revolving and reciprocating phonograph or graphophone cylinder holder, of a paring-knife having a chisel-shaped edge set and arranged at an inclination to the surface of the cylinder to be pared, substantially as specified.

3. The combination, with the revolving and reciprocating phonograph or graphophone cylinder holder, of a paring-knife having an edge, the ends or corners of which do not touchor engage the cylinder during the paring operation, whereby the tearing or chipping of the wax is prevented, substantially as specified.

4. In a phonograph or graphophone cylinder paring machine, the combination, with a revolving and reciprocating holder, of a knife arranged and adapted to pare the surface of the cylinder, with a slight swell or curvature therein, substantially as specified.

5. In a phonograph or graphophone cylinder paring machine, the combination of a suitable frame or support with a revolving and reciprocating cylinder holder, and a screw-threaded shaft and nut for simultaneously revolving andv reciprocating said holder and a dressing-tool, substantially as specified.

6. In a phonograph or graphophone cylinder paring machine, the combination of a suitable frame or support with a revolving and reciprocating cylinder-holder, and a screwthreaded shaft and nut for simultaneously revolving and reciprocating said holder and a dressing-tool, said screw-threaded shaft and nut being arranged with their axis vertical, sothat gravity may beutilized for revolving and reciprocating said cylinder, substantially as specified.

7. In a phonograph or graphophone cylinder paring machine, the combination of a suitable frame or support with a revolving and reciprocating cylinder-holder, and a screwthreaded shaft and nut for simultaneously revolving and reciprocating said holder and a dressing-tool, said screw-threaded shaft and nut being arranged with their axis vertical, so that gravity may be utilized for revolving and reciprocating said cylinder, and a weight for actuating said holder, substantially as specified.

8. In a phonograph or graphophone cylin-.

der paring machine, the combination of a suitable frame or support with a revolving and reciprocating cylinder-holder, and a screwthreaded shaft and nut for simultaneously revolving and reciprocating said holder and a dressing-tool, said screw-threaded shaft and nut being arranged with their axis vertical, so that gravity may be utilized for revolving and reciprocating said cylinder, and a Weight for actuating said holder, said weight being in the form of a handywheel, substantially as specified.

9. In a phonograph or graphophonc cylinder dressing machine, the combination, with a revolving and reciprocating holder, of a dressing-tool and mechanism for automatically adjusting the position of the dressingtool for each operation, substantially as specified.

10. In a phonograph or graphophone cylinder dressing machine, the combination, with a revolving and reciprocating holder, of 'a dressing-tool and mechanism for automatically adjusting the position of the dressingtool for each operation, said mechanism consisting in a screw-threaded tool-holder bar, a gear-nut, and a reciprocating rack-bar, substantially as specified.

11. In a phonograph-polishing machine, the combination, with a frame furnished with an elastic pad, of a revolving and reciprocating phon ograph-cylinder holder, said pad serving to prevent injury to the Wax cylinder from jars when the holder strikes the same, substantially as specified.

12. The combination, with a revolving and reciprocating holder, of a screw for simultaneously revolving and reciprocating the holder, and a dressing tool exceeding in length the distance between the contiguous threads on said screw, substantially as specified.

13. In a phonograph-dressing machine, the combination ofthe frame with revolving and reciprocating holder B, screw D, nut D', paring-tool F, mounted in an adjustable holder F screw-threaded holder-bar G, nut-gear J, ratchet-bar M, having arm m, adapted to engage said reciprocating cylinder -holder, and a spring for returning the ratchet-bar to place, substantially as specified.

14. In a phonograph-dressing machine, the combination of the frame with revolving and reciprocating holder B, screw D, nut D', paring-tool F, mounted in an adjustable holder F', screw-threaded holder-bar G, nut-gear J, ratchet-bar M, having arm m, adapted to engage said reciprocating cylinder-holder, and a spring for returning the ratchet-barl to place, said ratchet-bar having a loose guide N near its lower end and provided with spring fm2, whereby the ratchet-bar is adapted tobe lifted out of engagement with its gear, sub-` stantially as specified.

15. The combination, with a revolving and reciprocating holder B, of dressing-tool F andy its adjustable holder F substantially as specified.

16. The combination, With a revolving and reciprocating holder B, of a dressing-tool F,

mounted upon a square holder-bar G, having threads cut upon its corners, and a nut-gear J, substantially as specified.

17. The combination, with a revolving and reciprocating holder B, of a dressing-tool F, mounted upon a square holder-bar G, having threads cut upon its corners, and a nut-gear J, said nut-gear being secured in a recess to the frame by a slotted cap I4, substantially as` specified.

IOO

IIO

1S. The combination, in a phonographdressing 1nachine,of a dressing-tool with revolving and reciprocating liol(lc1,a1id a screw and nut having quick threads for revolving' and reciprocating' Said holder, substantially as specified.

19. The combination, in a phol'iographe dressing machine, of a dressing-tool with a revolving and reciprocating holder, and a screw-nut havin g quick-threads for revolvin 5.1; and reciprocating said holder, said screw and .nut having their axes arranged vertically, so that gravity may be utilized for actuating' said holder, substantially as specified.

20. The combination ol' the frame having i5 a guideway therein, of a bar G, fitting in Said. guideway and having screw-threads cnt upon its corners, and a gear-nut lrhrcaded upon said bar and secured in a recess in said frame by a removable cap, anda phonograph-dress- 2o ing tool mounted upon said har, substantially as specified.

GEORGE A. BEACH.

Wvtnesses:

ALLEN CROSSAN, K. GREGORY. 

